Tuck-marking attachment for sewing-machines



(No Model.)

J.M. GRIEST.

' TUGK MARKING ATTACHMENT FOR SEWING MAGHINES. No. 394,967. PatentedDec. 25, 1888.

l h m wooao N. PETERS, mumm m. Washingtnn, ma

UNITED STATES PATENT OFFICE.

JOHN M. GRIEST, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE SINGER MANU-FACTURTNG COMPANY OF NEV JERSEY.

TUCK-MARKING ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 394,967, dated December25, 1888.

Application filed December 27, 1887. Serial No. 259,092- (No model.)

To aZZ whom it may concern.-

Be it known, that I, JOHN M. GRIEST, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois,

have invented certain new and useful Improvements in Tuck Creasers orMarkers for Sewing-Machines, of which the following is a specification,reference being had therein to the accompanying drawings.

My invention relates more particularly to that class of tuck creasing ormarking devices in which the creasing is effected by a small groovedroller carried by a rock shaft or arm receiving its movements from theneedle-bar of the machine and a retracting-spring, the said rollerforcing the fabric to be creased against an upturned lip on thebase-plate or lower arm of the attachment.

. The object of my invention is to provide a simple, compact, andconvenient creasing or marking device of the class referred to, althoughsome features thereof are applicable to other forms of tuck-markers thanthose embraced by the said class. 2 5 In the drawings, Figure l is apartial front end view of a sewin g-machine with my marker 1n operativeposition relative to the needle and presser bars thereof. Fig. 2 is aplan view of the marker removed from the machine. Fig. 3 is a front viewof the same. Fig. atis a detail view of the front end of the marker withthe parts in marking or creasing position. Fig. 5 is a sectional view online 5 5, Fig. 2, looking in the direction indicated by 5 the arrows.Fig. 6 is a view similar to Fig. 5, showing the operating-lever detachedfrom the marker-carrying bar. Fig. 7 is a section on line 7 7, Fig. 2.

A denotes a portion of the depending head at the forward end of thebracket arm of a sewing-machine, B the needle-bar, and C thepresser-bar. Surrounding the presser-bar, which is, as usual, arrangedrearward of the needle-bar, is a tubular attachment-holding bar orsleeve, D, such as is fully described in my application, Serial No.259,089, filed simultaneously herewith, the attachmen tbar beingprovided with a clamping-lever, (7, operating as set forth in my saidapplication.

E denotes the body-bar of the attachment, said bar bein g bent downwardand flattened to form an arm or plate, e, provided at its forward endwith an upturned creasing-lip, e, which is beneath the bar E.

F is a bracket through which the bar E passes, and by which theattachment may be secured to the attachment-bar D.

G is the rocking marker-carrying bar, extending lengthwise of theattachment and pivoted on the bar E by means of loops g, formed on thesaid rocking bar, the latter being provided at its forward end with aspring-arm,

g, carrying the grooved creasing-roller 9 The spring-arm g is attachedto a depending arm 011 the rocking bar G, and is extended below the barE (on which the said rocking bar is pivoted) to the saidcreasing-roller, the latter being at the free end of the said arm. Thesaid spring-arm thus serves as a positive connection between thecreasing-roller and the rocking bar, so as to cause the former to followthe circular or rocking movements of the latter, although the resistanceof said arm admits of a yielding contact between the creasing-roller andthe creasing-lip e, which co-operates therewith; or, more properly,admits of a yielding contact, of the creasingroller with the fabric,which passes over said lip when the attachment is used. The, roller 9 issteadied by a small arm or link, 6 hav- 8o ing a hole at its lower endto receive the pivot pin of the said roller, and having at its upper enda slot, 6- to receive the shank of a screw or pin, 8. The said arm orlink 6 serves to limit the movement of the creasing-roller carriedby-the spring-arm g away from the center of motion of the rocking bar G.

H is-the operating-lever, to be enga ed by a screw or other projectionon the neec le-bar of the machine, the said lever being prefero ablydetachably connected with the rocking marker-carrying bar by the flangedhead of a pin, 2', passing through a loop or lug, 71, formed on the saidlever. The head of the pint is cut away on one side, and when the saidpin 9 5 is turned over so that the cut-away side is down, as in Fig. 6,it is obvious that the flanged head of the pin will not engage the barG, and the operating-lever will thus be detached therefrom. The pin '0'is held either in or out of its operative position by a pin or smalllever, i, the upper end of which passes through the pin 1', and thusholds it in the loop 71, and the lower end of which is forked to embracethe lever ll. \Vhen the forked end of the lever 1 is disengaged-from thelever II, as shown in Fig. 0, the pin will be free to be turned in theloop 71 to bring the full portion of the head of the said pin down toengage the bar G, or to turn it up to disconnect the said bar from theoperating-lever 10 ll. Atorsional spring, 0', surroundingthebar E andconnected with the rocking bar G, serves to effect the returnl'llOYGlllGllllS of the latter bar, these movements being limited by astop-pin, 12", passing through the bar E and I 5 also serving to holdthe bar G thereon.

J is a bar which passes through the bracket 13 and which carries theguide A; for the edge of the material, the shank. of the said guide beinn'eferabl y pivoted to said bar, so that the guide may be turned up outof the way, as indicated in dotted lines in Fig. 5, when not in use. Theedge of the fabric to be guided will pass between lugs or lips it" 71-struck out from the metal from which the 2 5 edge-guide and its shankare fmmed.

ing bar J in the said bracket, the latter being provided with the fixedscrew-threaded pin 0 f for the receptionof the said nut. Thebars E and Jare provided with flattened faces, (see Fig. 7 against which bears ahousingplate, m, outside of which is a plate or washer, a. The bearingportion f of the nut f is rounded so that the plate or washer a can rockslightly to accommodate itself to the flattened faces of the bars E and.T, so as to bear equally thereon and hold both firmly if one shouldproject out a little beyond the other. \Vhen thenutfisloose1'1ed,the barE, with which the marking or creasing devices are connected, may beadjusted laterally through the said bracket, (which latter is of coursestationary relative tothe needle of the machine) to vary the position ofthe said creasin devices accordin to the width of the tuck which is tobe made. The loosening ot the said nut also leaves the bar J free to beadjusted laterally to move the edge-guide 7c 5o nearer to or fartherfrom the needle of the machine.

\Vhen the min-king dcvices are adjusted. laterallyot the ln-acket l thescrew f which is tapped in said. ln'acket and the head of which overlapsthe operating-lever 11', holds the said lever in operating positioncontiguous to said bracket.

As my improved creaser or marker is adapted to be attached toaholding-bar, which is arranged rearward of the needle, the marking orcreasing devices are entirely out of the way of the operator, so as notto interfere with the work. l\loreover, by constructing the attachmentso that the creasing or marking devices are rearward of the presser-footand needle well-defined creases maybe formed nearer to the line ofstitches than by the creasingdevices which are arranged in frontof theneedle and presser-l'oot, for the reason that a crease made in front ofthe needle, if near enough to the latter to come in the line of thepresser-foot, will be nearly or quite obliterated when passed under thepresser-foot in the operation of sewing. lrurthermore, by providing myimproved tuck creaseror markm' with abraeket by which it may be attachedto a support or attachment-bar secured to the depending head of themachine a. neater and more compact device is produced than is possiblewhen the marker or creaser is constructed for attachment to the \\'ork-)late of the machine.

\Vhen the creaser or marker is secured in operative position on asewing-machine and the machine set in motion, a projection on theneedle-bar, on the descent of the latter, comes in contact with theperating-lever 1], and as the said lever is connected to the bar G thesaid bar is caused to rock on the bar E, fore ing the creasing-rollercarried by the s jn'iugarm g at the fmward end of the said bar (i i incontact with the fabric resting on the lip The bar E held in the bracketF by the set-nut j", which also secures the guide-l'loldl e, the saidspring-arm yielding as it rides over the said lip, and therelilycreasing the fabric with a yielding rolling pressure, which precludesany possibility of cutting or abrading the thinnest fabrics. \Vhen theneedlebar rises, the parts are returned to their normal positions by thetorsional retractingspring 6', and thus the operations are repeated asthe work is fed through the machine.

If it is desired to run the machine without creasing the goods andwithout removing the creaser from the machine, the lover 1:[ maybedisengaged from the rocking bar G by raising the forked lever t" fromthe lever II and turning the pin t over, so that the full portion of itshead will be upward or away from the bar G, as shown in Fig. 6, and itthe edge guide 7t should then be in the way it may be raised to theposition shown in dotted lines in Fig.

The attachment and presser-loot holding and securing devicesincidentally shown in Fig. 1. of the drawings are not herein claimed, asthey are embraced by my a 'lplieation, Serial N 0. 259,089,hereinbel'ore referred to. Neither do I claim in this ap ication. thefeatu re herei 11. shown of locating the creasing devices rearward otthe prcsser-loot of the machine, or the .leature of a rocking bar orshaft having an arm carrying a (n'easingq'oller, which oscillated invthe arc of a circle directly by the said arm, these features of myinvention being reserved to my application, Serial No. 259,090, filedsii 1 l nltai 1 con sl y herewith.

I claim 1. In, a tuck-marker for sewirig-machines, the combinath)n, withthe bar E, the creasin devices, and. the rocking bar G, of theoperating-lcvrn- 11, having the loop 72., the pin '1', free to turn insaid loop and having its head cut away on one side, and the forked.lever t, to

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retain the said pin in said loop and to hold it in and out of operativeposition.

2. In a tuck creaser or marker for sewing machines, theco1nbination,with the bracket F, of the creasing attachment supported byand laterally adjustable relative to said bracket, the operating-leverH, loosely pivoted on the bar E of the said creasing attachment, and thescrew f which is tapped in said bracket and the head of which overlapsthe said lever to retain the latter in operative position relative tosaid bracket.

In a tuck creaser or marker for sewing.- machines, the combination, withthe bracket F, having the threaded pin f of the bars E and J, passingthrough said bracket, the marking devices supported by the said bar E,the edge guide attached to the said bar J, the housing-plate on, theplate or washer n, and the set-nut f.

4. In a tuck creaser or marker for sewingmachines, the combination, witha rocking bar or shaft extending lengthwise of the marker and providedwith a spring-arm carrying a creasing-roller, of a creasing-lip beneaththe center of movement of the said rocking bar and a device moving withthe rocking bar for limiting the outward movement of the said rollerfrom the center of movement of the said rocking bar, whereby when themarker is in operation the said roller will be alternately lifted fromthe said lip and forced into yielding contact therewith, and when insuch contact with the lip will be rolled backward and forward over thesame in the directions of the movements of the rocking bar as the latteroscillates.

5. The combination, with the rocking bar G, having the spring-arm g,provided with the creasing-roller of the arm or link 6 connected to thesaid spring-arm and having the slot 0 the bar E, and the screw 0 passingthrough the slot of the said link and serving to connect the upper endof the latter to the said bar E.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN M. GRIEST.

lVitnesses:

HENRY CALVER, EWELL A. DICK.

